[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / serial / kobil_sct.c

/*
 *  KOBIL USB Smart Card Terminal Driver
 *
 *  Copyright (C) 2002  KOBIL Systems GmbH
 *  Author: Thomas Wahrenbruch
 *
 *  Contact: linuxusb@kobil.de
 *
 *  This program is largely derived from work by the linux-usb group
 *  and associated source files.  Please see the usb/serial files for
 *  individual credits and copyrights.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
 *  patience.
 *
 * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
 * (Adapter K), B1 Professional and KAAN Professional (Adapter B)
 */


#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/ioctl.h>
#include "kobil_sct.h"

#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"

#define KOBIL_VENDOR_ID			0x0D46
#define KOBIL_ADAPTER_B_PRODUCT_ID	0x2011
#define KOBIL_ADAPTER_K_PRODUCT_ID	0x2012
#define KOBIL_USBTWIN_PRODUCT_ID	0x0078
#define KOBIL_KAAN_SIM_PRODUCT_ID       0x0081

#define KOBIL_TIMEOUT		500
#define KOBIL_BUF_LENGTH	300


/* Function prototypes */
static int kobil_port_probe(struct usb_serial_port *probe);
static int kobil_port_remove(struct usb_serial_port *probe);
static int  kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
static void kobil_close(struct usb_serial_port *port);
static int  kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
			 const unsigned char *buf, int count);
static int  kobil_write_room(struct tty_struct *tty);
static int  kobil_ioctl(struct tty_struct *tty,
			unsigned int cmd, unsigned long arg);
static int  kobil_tiocmget(struct tty_struct *tty);
static int  kobil_tiocmset(struct tty_struct *tty,
			   unsigned int set, unsigned int clear);
static void kobil_read_int_callback(struct urb *urb);
static void kobil_write_int_callback(struct urb *urb);
static void kobil_set_termios(struct tty_struct *tty,
			struct usb_serial_port *port, struct ktermios *old);
static void kobil_init_termios(struct tty_struct *tty);

static const struct usb_device_id id_table[] = {
	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
	{ }			/* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);

static struct usb_serial_driver kobil_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"kobil",
	},
	.description =		"KOBIL USB smart card terminal",
	.id_table =		id_table,
	.num_ports =		1,
	.port_probe =		kobil_port_probe,
	.port_remove =		kobil_port_remove,
	.ioctl =		kobil_ioctl,
	.set_termios =		kobil_set_termios,
	.init_termios =		kobil_init_termios,
	.tiocmget =		kobil_tiocmget,
	.tiocmset =		kobil_tiocmset,
	.open =			kobil_open,
	.close =		kobil_close,
	.write =		kobil_write,
	.write_room =		kobil_write_room,
	.read_int_callback =	kobil_read_int_callback,
	.write_int_callback =	kobil_write_int_callback,
};

static struct usb_serial_driver * const serial_drivers[] = {
	&kobil_device, NULL
};

struct kobil_private {
	unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
	int filled;  /* index of the last char in buf */
	int cur_pos; /* index of the next char to send in buf */
	__u16 device_type;
};


static int kobil_port_probe(struct usb_serial_port *port)
{
	struct usb_serial *serial = port->serial;
	struct kobil_private *priv;

	priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	priv->filled = 0;
	priv->cur_pos = 0;
	priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);

	switch (priv->device_type) {
	case KOBIL_ADAPTER_B_PRODUCT_ID:
		dev_dbg(&serial->dev->dev, "KOBIL B1 PRO / KAAN PRO detected\n");
		break;
	case KOBIL_ADAPTER_K_PRODUCT_ID:
		dev_dbg(&serial->dev->dev, "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
		break;
	case KOBIL_USBTWIN_PRODUCT_ID:
		dev_dbg(&serial->dev->dev, "KOBIL USBTWIN detected\n");
		break;
	case KOBIL_KAAN_SIM_PRODUCT_ID:
		dev_dbg(&serial->dev->dev, "KOBIL KAAN SIM detected\n");
		break;
	}
	usb_set_serial_port_data(port, priv);

	return 0;
}


static int kobil_port_remove(struct usb_serial_port *port)
{
	struct kobil_private *priv;

	priv = usb_get_serial_port_data(port);
	kfree(priv);

	return 0;
}

static void kobil_init_termios(struct tty_struct *tty)
{
	/* Default to echo off and other sane device settings */
	tty->termios.c_lflag = 0;
	tty->termios.c_iflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
	tty->termios.c_iflag |= IGNBRK | IGNPAR | IXOFF;
	/* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
	tty->termios.c_oflag &= ~ONLCR;
}

static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
{
	struct device *dev = &port->dev;
	int result = 0;
	struct kobil_private *priv;
	unsigned char *transfer_buffer;
	int transfer_buffer_length = 8;

	priv = usb_get_serial_port_data(port);

	/* allocate memory for transfer buffer */
	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
	if (!transfer_buffer)
		return -ENOMEM;

	/* get hardware version */
	result = usb_control_msg(port->serial->dev,
			  usb_rcvctrlpipe(port->serial->dev, 0),
			  SUSBCRequest_GetMisc,
			  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
			  SUSBCR_MSC_GetHWVersion,
			  0,
			  transfer_buffer,
			  transfer_buffer_length,
			  KOBIL_TIMEOUT
	);
	dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result);
	dev_dbg(dev, "Harware version: %i.%i.%i\n", transfer_buffer[0],
		transfer_buffer[1], transfer_buffer[2]);

	/* get firmware version */
	result = usb_control_msg(port->serial->dev,
			  usb_rcvctrlpipe(port->serial->dev, 0),
			  SUSBCRequest_GetMisc,
			  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
			  SUSBCR_MSC_GetFWVersion,
			  0,
			  transfer_buffer,
			  transfer_buffer_length,
			  KOBIL_TIMEOUT
	);
	dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result);
	dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0],
		transfer_buffer[1], transfer_buffer[2]);

	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
			priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
		/* Setting Baudrate, Parity and Stopbits */
		result = usb_control_msg(port->serial->dev,
			  usb_rcvctrlpipe(port->serial->dev, 0),
			  SUSBCRequest_SetBaudRateParityAndStopBits,
			  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
			  SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity |
							SUSBCR_SPASB_1StopBit,
			  0,
			  transfer_buffer,
			  0,
			  KOBIL_TIMEOUT
		);
		dev_dbg(dev, "%s - Send set_baudrate URB returns: %i\n", __func__, result);

		/* reset all queues */
		result = usb_control_msg(port->serial->dev,
			  usb_rcvctrlpipe(port->serial->dev, 0),
			  SUSBCRequest_Misc,
			  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
			  SUSBCR_MSC_ResetAllQueues,
			  0,
			  transfer_buffer,
			  0,
			  KOBIL_TIMEOUT
		);
		dev_dbg(dev, "%s - Send reset_all_queues URB returns: %i\n", __func__, result);
	}
	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
	    priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
	    priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
		/* start reading (Adapter B 'cause PNP string) */
		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
		dev_dbg(dev, "%s - Send read URB returns: %i\n", __func__, result);
	}

	kfree(transfer_buffer);
	return 0;
}


static void kobil_close(struct usb_serial_port *port)
{
	/* FIXME: Add rts/dtr methods */
	usb_kill_urb(port->interrupt_out_urb);
	usb_kill_urb(port->interrupt_in_urb);
}


static void kobil_read_int_callback(struct urb *urb)
{
	int result;
	struct usb_serial_port *port = urb->context;
	unsigned char *data = urb->transfer_buffer;
	int status = urb->status;

	if (status) {
		dev_dbg(&port->dev, "%s - Read int status not zero: %d\n", __func__, status);
		return;
	}

	if (urb->actual_length) {
		usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
									data);
		tty_insert_flip_string(&port->port, data, urb->actual_length);
		tty_flip_buffer_push(&port->port);
	}

	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
	dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
}


static void kobil_write_int_callback(struct urb *urb)
{
}


static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
			const unsigned char *buf, int count)
{
	int length = 0;
	int result = 0;
	int todo = 0;
	struct kobil_private *priv;

	if (count == 0) {
		dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
		return 0;
	}

	priv = usb_get_serial_port_data(port);

	if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
		dev_dbg(&port->dev, "%s - Error: write request bigger than buffer size\n", __func__);
		return -ENOMEM;
	}

	/* Copy data to buffer */
	memcpy(priv->buf + priv->filled, buf, count);
	usb_serial_debug_data(&port->dev, __func__, count, priv->buf + priv->filled);
	priv->filled = priv->filled + count;

	/* only send complete block. TWIN, KAAN SIM and adapter K
	   use the same protocol. */
	if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
	     ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
		/* stop reading (except TWIN and KAAN SIM) */
		if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
			|| (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
			usb_kill_urb(port->interrupt_in_urb);

		todo = priv->filled - priv->cur_pos;

		while (todo > 0) {
			/* max 8 byte in one urb (endpoint size) */
			length = min(todo, port->interrupt_out_size);
			/* copy data to transfer buffer */
			memcpy(port->interrupt_out_buffer,
					priv->buf + priv->cur_pos, length);
			port->interrupt_out_urb->transfer_buffer_length = length;

			priv->cur_pos = priv->cur_pos + length;
			result = usb_submit_urb(port->interrupt_out_urb, GFP_NOIO);
			dev_dbg(&port->dev, "%s - Send write URB returns: %i\n", __func__, result);
			todo = priv->filled - priv->cur_pos;

			if (todo > 0)
				msleep(24);
		}

		priv->filled = 0;
		priv->cur_pos = 0;

		/* start reading (except TWIN and KAAN SIM) */
		if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
			priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
			result = usb_submit_urb(port->interrupt_in_urb,
								GFP_NOIO);
			dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
		}
	}
	return count;
}


static int kobil_write_room(struct tty_struct *tty)
{
	/* FIXME */
	return 8;
}


static int kobil_tiocmget(struct tty_struct *tty)
{
	struct usb_serial_port *port = tty->driver_data;
	struct kobil_private *priv;
	int result;
	unsigned char *transfer_buffer;
	int transfer_buffer_length = 8;

	priv = usb_get_serial_port_data(port);
	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
			|| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
		/* This device doesn't support ioctl calls */
		return -EINVAL;
	}

	/* allocate memory for transfer buffer */
	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
	if (!transfer_buffer)
		return -ENOMEM;

	result = usb_control_msg(port->serial->dev,
			  usb_rcvctrlpipe(port->serial->dev, 0),
			  SUSBCRequest_GetStatusLineState,
			  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
			  0,
			  0,
			  transfer_buffer,
			  transfer_buffer_length,
			  KOBIL_TIMEOUT);

	dev_dbg(&port->dev, "%s - Send get_status_line_state URB returns: %i. Statusline: %02x\n",
		__func__, result, transfer_buffer[0]);

	result = 0;
	if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
		result = TIOCM_DSR;
	kfree(transfer_buffer);
	return result;
}

static int kobil_tiocmset(struct tty_struct *tty,
			   unsigned int set, unsigned int clear)
{
	struct usb_serial_port *port = tty->driver_data;
	struct device *dev = &port->dev;
	struct kobil_private *priv;
	int result;
	int dtr = 0;
	int rts = 0;
	unsigned char *transfer_buffer;
	int transfer_buffer_length = 8;

	/* FIXME: locking ? */
	priv = usb_get_serial_port_data(port);
	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
		|| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
		/* This device doesn't support ioctl calls */
		return -EINVAL;
	}

	/* allocate memory for transfer buffer */
	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
	if (!transfer_buffer)
		return -ENOMEM;

	if (set & TIOCM_RTS)
		rts = 1;
	if (set & TIOCM_DTR)
		dtr = 1;
	if (clear & TIOCM_RTS)
		rts = 0;
	if (clear & TIOCM_DTR)
		dtr = 0;

	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
		if (dtr != 0)
			dev_dbg(dev, "%s - Setting DTR\n", __func__);
		else
			dev_dbg(dev, "%s - Clearing DTR\n", __func__);
		result = usb_control_msg(port->serial->dev,
			  usb_rcvctrlpipe(port->serial->dev, 0),
			  SUSBCRequest_SetStatusLinesOrQueues,
			  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
			  ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
			  0,
			  transfer_buffer,
			  0,
			  KOBIL_TIMEOUT);
	} else {
		if (rts != 0)
			dev_dbg(dev, "%s - Setting RTS\n", __func__);
		else
			dev_dbg(dev, "%s - Clearing RTS\n", __func__);
		result = usb_control_msg(port->serial->dev,
			usb_rcvctrlpipe(port->serial->dev, 0),
			SUSBCRequest_SetStatusLinesOrQueues,
			USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
			((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
			0,
			transfer_buffer,
			0,
			KOBIL_TIMEOUT);
	}
	dev_dbg(dev, "%s - Send set_status_line URB returns: %i\n", __func__, result);
	kfree(transfer_buffer);
	return (result < 0) ? result : 0;
}

static void kobil_set_termios(struct tty_struct *tty,
			struct usb_serial_port *port, struct ktermios *old)
{
	struct kobil_private *priv;
	int result;
	unsigned short urb_val = 0;
	int c_cflag = tty->termios.c_cflag;
	speed_t speed;

	priv = usb_get_serial_port_data(port);
	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
			priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
		/* This device doesn't support ioctl calls */
		tty_termios_copy_hw(&tty->termios, old);
		return;
	}

	speed = tty_get_baud_rate(tty);
	switch (speed) {
	case 1200:
		urb_val = SUSBCR_SBR_1200;
		break;
	default:
		speed = 9600;
	case 9600:
		urb_val = SUSBCR_SBR_9600;
		break;
	}
	urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
							SUSBCR_SPASB_1StopBit;
	if (c_cflag & PARENB) {
		if  (c_cflag & PARODD)
			urb_val |= SUSBCR_SPASB_OddParity;
		else
			urb_val |= SUSBCR_SPASB_EvenParity;
	} else
		urb_val |= SUSBCR_SPASB_NoParity;
	tty->termios.c_cflag &= ~CMSPAR;
	tty_encode_baud_rate(tty, speed, speed);

	result = usb_control_msg(port->serial->dev,
		  usb_rcvctrlpipe(port->serial->dev, 0),
		  SUSBCRequest_SetBaudRateParityAndStopBits,
		  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
		  urb_val,
		  0,
		  NULL,
		  0,
		  KOBIL_TIMEOUT
		);
}

static int kobil_ioctl(struct tty_struct *tty,
					unsigned int cmd, unsigned long arg)
{
	struct usb_serial_port *port = tty->driver_data;
	struct kobil_private *priv = usb_get_serial_port_data(port);
	unsigned char *transfer_buffer;
	int transfer_buffer_length = 8;
	int result;

	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
			priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
		/* This device doesn't support ioctl calls */
		return -ENOIOCTLCMD;

	switch (cmd) {
	case TCFLSH:
		transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
		if (!transfer_buffer)
			return -ENOBUFS;

		result = usb_control_msg(port->serial->dev,
			  usb_rcvctrlpipe(port->serial->dev, 0),
			  SUSBCRequest_Misc,
			  USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
			  SUSBCR_MSC_ResetAllQueues,
			  0,
			  NULL, /* transfer_buffer, */
			  0,
			  KOBIL_TIMEOUT
			);

		dev_dbg(&port->dev,
			"%s - Send reset_all_queues (FLUSH) URB returns: %i", __func__, result);
		kfree(transfer_buffer);
		return (result < 0) ? -EIO: 0;
	default:
		return -ENOIOCTLCMD;
	}
}

module_usb_serial_driver(serial_drivers, id_table);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* KOBIL USB Smart Card Terminal Driver
	3	*
dee0a7cc	4	* Copyright (C) 2002 KOBIL Systems GmbH
1da177e4 LT	5	* Author: Thomas Wahrenbruch
	6	*
	7	* Contact: linuxusb@kobil.de
	8	*
	9	* This program is largely derived from work by the linux-usb group
	10	* and associated source files. Please see the usb/serial files for
	11	* individual credits and copyrights.
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
	19	* patience.
	20	*
	21	* Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
	22	* (Adapter K), B1 Professional and KAAN Professional (Adapter B)
1da177e4 LT	23	*/
	24
	25
1da177e4 LT	26	#include <linux/kernel.h>
	27	#include <linux/errno.h>
	28	#include <linux/init.h>
	29	#include <linux/slab.h>
	30	#include <linux/tty.h>
	31	#include <linux/tty_driver.h>
	32	#include <linux/tty_flip.h>
	33	#include <linux/module.h>
	34	#include <linux/spinlock.h>
dee0a7cc	35	#include <linux/uaccess.h>
1da177e4	36	#include <linux/usb.h>
a969888c	37	#include <linux/usb/serial.h>
1da177e4	38	#include <linux/ioctl.h>
1da177e4 LT	39	#include "kobil_sct.h"
1da177e4 LT	40
1da177e4 LT	41	#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
	42	#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
	43
	44	#define KOBIL_VENDOR_ID 0x0D46
	45	#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
	46	#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
	47	#define KOBIL_USBTWIN_PRODUCT_ID 0x0078
	48	#define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081
	49
	50	#define KOBIL_TIMEOUT 500
	51	#define KOBIL_BUF_LENGTH 300
	52
	53
	54	/* Function prototypes */
95940a04 JH	55	static int kobil_port_probe(struct usb_serial_port *probe);
95940a04 JH	56	static int kobil_port_remove(struct usb_serial_port *probe);
a509a7e4	57	static int kobil_open(struct tty_struct tty, struct usb_serial_port port);
335f8514	58	static void kobil_close(struct usb_serial_port *port);
dee0a7cc	59	static int kobil_write(struct tty_struct tty, struct usb_serial_port port,
1da177e4	60	const unsigned char *buf, int count);
95da310e	61	static int kobil_write_room(struct tty_struct *tty);
00a0d0d6	62	static int kobil_ioctl(struct tty_struct *tty,
1da177e4	63	unsigned int cmd, unsigned long arg);
60b33c13	64	static int kobil_tiocmget(struct tty_struct *tty);
20b9d177	65	static int kobil_tiocmset(struct tty_struct *tty,
1da177e4	66	unsigned int set, unsigned int clear);
dee0a7cc	67	static void kobil_read_int_callback(struct urb *urb);
feb0a36a	68	static void kobil_write_int_callback(struct urb *urb);
dee0a7cc	69	static void kobil_set_termios(struct tty_struct *tty,
95da310e	70	struct usb_serial_port port, struct ktermios old);
fe1ae7fd	71	static void kobil_init_termios(struct tty_struct *tty);
1da177e4	72
7d40d7e8	73	static const struct usb_device_id id_table[] = {
1da177e4 LT	74	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
	75	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
	76	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
	77	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
	78	{ } /* Terminating entry */
	79	};
dee0a7cc	80	MODULE_DEVICE_TABLE(usb, id_table);
1da177e4	81
ea65370d	82	static struct usb_serial_driver kobil_device = {
18fcac35 GKH	83	.driver = {
18fcac35 GKH	84	.owner = THIS_MODULE,
269bda1c	85	.name = "kobil",
18fcac35	86	},
269bda1c	87	.description = "KOBIL USB smart card terminal",
1da177e4	88	.id_table = id_table,
1da177e4	89	.num_ports = 1,
95940a04 JH	90	.port_probe = kobil_port_probe,
95940a04 JH	91	.port_remove = kobil_port_remove,
1da177e4	92	.ioctl = kobil_ioctl,
94d0f7ea	93	.set_termios = kobil_set_termios,
fe1ae7fd	94	.init_termios = kobil_init_termios,
1da177e4 LT	95	.tiocmget = kobil_tiocmget,
	96	.tiocmset = kobil_tiocmset,
	97	.open = kobil_open,
	98	.close = kobil_close,
	99	.write = kobil_write,
	100	.write_room = kobil_write_room,
	101	.read_int_callback = kobil_read_int_callback,
feb0a36a	102	.write_int_callback = kobil_write_int_callback,
1da177e4 LT	103	};
1da177e4 LT	104
4d2a7aff AS	105	static struct usb_serial_driver * const serial_drivers[] = {
	106	&kobil_device, NULL
	107	};
1da177e4 LT	108
1da177e4 LT	109	struct kobil_private {
dee0a7cc AC	110	unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
	111	int filled; /* index of the last char in buf */
	112	int cur_pos; /* index of the next char to send in buf */
1da177e4	113	__u16 device_type;
1da177e4 LT	114	};
	115
	116
95940a04	117	static int kobil_port_probe(struct usb_serial_port *port)
1da177e4	118	{
95940a04	119	struct usb_serial *serial = port->serial;
1da177e4	120	struct kobil_private *priv;
1da177e4 LT	121
1da177e4 LT	122	priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
dee0a7cc	123	if (!priv)
1da177e4	124	return -ENOMEM;
1da177e4 LT	125
	126	priv->filled = 0;
	127	priv->cur_pos = 0;
	128	priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
1da177e4	129
dee0a7cc	130	switch (priv->device_type) {
1da177e4	131	case KOBIL_ADAPTER_B_PRODUCT_ID:
6c27ad83	132	dev_dbg(&serial->dev->dev, "KOBIL B1 PRO / KAAN PRO detected\n");
1da177e4 LT	133	break;
1da177e4 LT	134	case KOBIL_ADAPTER_K_PRODUCT_ID:
6c27ad83	135	dev_dbg(&serial->dev->dev, "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
1da177e4 LT	136	break;
1da177e4 LT	137	case KOBIL_USBTWIN_PRODUCT_ID:
6c27ad83	138	dev_dbg(&serial->dev->dev, "KOBIL USBTWIN detected\n");
1da177e4 LT	139	break;
1da177e4 LT	140	case KOBIL_KAAN_SIM_PRODUCT_ID:
6c27ad83	141	dev_dbg(&serial->dev->dev, "KOBIL KAAN SIM detected\n");
1da177e4 LT	142	break;
1da177e4 LT	143	}
95940a04	144	usb_set_serial_port_data(port, priv);
1da177e4	145
1da177e4 LT	146	return 0;
	147	}
	148
	149
95940a04	150	static int kobil_port_remove(struct usb_serial_port *port)
1da177e4	151	{
95940a04	152	struct kobil_private *priv;
1da177e4	153
95940a04 JH	154	priv = usb_get_serial_port_data(port);
	155	kfree(priv);
	156
	157	return 0;
1da177e4 LT	158	}
1da177e4 LT	159
fe1ae7fd AC	160	static void kobil_init_termios(struct tty_struct *tty)
	161	{
	162	/* Default to echo off and other sane device settings */
adc8d746	163	tty->termios.c_lflag = 0;
6a6c8b36 AC	164	tty->termios.c_iflag &= ~(ISIG \| ICANON \| ECHO \| IEXTEN \| XCASE);
6a6c8b36 AC	165	tty->termios.c_iflag \|= IGNBRK \| IGNPAR \| IXOFF;
fe1ae7fd	166	/* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
adc8d746	167	tty->termios.c_oflag &= ~ONLCR;
fe1ae7fd	168	}
1da177e4	169
a509a7e4	170	static int kobil_open(struct tty_struct tty, struct usb_serial_port port)
1da177e4	171	{
b12f7a1c	172	struct device *dev = &port->dev;
94d0f7ea	173	int result = 0;
1da177e4 LT	174	struct kobil_private *priv;
	175	unsigned char *transfer_buffer;
	176	int transfer_buffer_length = 8;
1da177e4	177
1da177e4	178	priv = usb_get_serial_port_data(port);
1da177e4	179
dee0a7cc	180	/* allocate memory for transfer buffer */
80b6ca48	181	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
dee0a7cc	182	if (!transfer_buffer)
1da177e4	183	return -ENOMEM;
dee0a7cc	184
dee0a7cc AC	185	/* get hardware version */
	186	result = usb_control_msg(port->serial->dev,
	187	usb_rcvctrlpipe(port->serial->dev, 0),
	188	SUSBCRequest_GetMisc,
	189	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_IN,
	190	SUSBCR_MSC_GetHWVersion,
	191	0,
	192	transfer_buffer,
	193	transfer_buffer_length,
	194	KOBIL_TIMEOUT
	195	);
b12f7a1c GKH	196	dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result);
	197	dev_dbg(dev, "Harware version: %i.%i.%i\n", transfer_buffer[0],
	198	transfer_buffer[1], transfer_buffer[2]);
dee0a7cc AC	199
	200	/* get firmware version */
	201	result = usb_control_msg(port->serial->dev,
	202	usb_rcvctrlpipe(port->serial->dev, 0),
	203	SUSBCRequest_GetMisc,
	204	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_IN,
	205	SUSBCR_MSC_GetFWVersion,
	206	0,
	207	transfer_buffer,
	208	transfer_buffer_length,
	209	KOBIL_TIMEOUT
	210	);
b12f7a1c GKH	211	dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result);
	212	dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0],
	213	transfer_buffer[1], transfer_buffer[2]);
dee0a7cc AC	214
	215	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\|
	216	priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
	217	/* Setting Baudrate, Parity and Stopbits */
	218	result = usb_control_msg(port->serial->dev,
	219	usb_rcvctrlpipe(port->serial->dev, 0),
	220	SUSBCRequest_SetBaudRateParityAndStopBits,
	221	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
	222	SUSBCR_SBR_9600 \| SUSBCR_SPASB_EvenParity \|
	223	SUSBCR_SPASB_1StopBit,
	224	0,
	225	transfer_buffer,
	226	0,
	227	KOBIL_TIMEOUT
1da177e4	228	);
b12f7a1c	229	dev_dbg(dev, "%s - Send set_baudrate URB returns: %i\n", __func__, result);
dee0a7cc AC	230
	231	/* reset all queues */
	232	result = usb_control_msg(port->serial->dev,
	233	usb_rcvctrlpipe(port->serial->dev, 0),
	234	SUSBCRequest_Misc,
	235	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
	236	SUSBCR_MSC_ResetAllQueues,
	237	0,
	238	transfer_buffer,
	239	0,
	240	KOBIL_TIMEOUT
1da177e4	241	);
b12f7a1c	242	dev_dbg(dev, "%s - Send reset_all_queues URB returns: %i\n", __func__, result);
1da177e4	243	}
dee0a7cc AC	244	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\|
dee0a7cc AC	245	priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\|
1da177e4	246	priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
dee0a7cc AC	247	/* start reading (Adapter B 'cause PNP string) */
dee0a7cc AC	248	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
b12f7a1c	249	dev_dbg(dev, "%s - Send read URB returns: %i\n", __func__, result);
1da177e4 LT	250	}
	251
	252	kfree(transfer_buffer);
	253	return 0;
	254	}
	255
	256
335f8514	257	static void kobil_close(struct usb_serial_port *port)
1da177e4	258	{
335f8514	259	/* FIXME: Add rts/dtr methods */
feb0a36a	260	usb_kill_urb(port->interrupt_out_urb);
5505c226	261	usb_kill_urb(port->interrupt_in_urb);
1da177e4 LT	262	}
	263
	264
6fcdcf04	265	static void kobil_read_int_callback(struct urb *urb)
1da177e4	266	{
1da177e4	267	int result;
6fcdcf04	268	struct usb_serial_port *port = urb->context;
6fcdcf04 GKH	269	unsigned char *data = urb->transfer_buffer;
6fcdcf04 GKH	270	int status = urb->status;
1da177e4	271
6fcdcf04	272	if (status) {
b12f7a1c	273	dev_dbg(&port->dev, "%s - Read int status not zero: %d\n", __func__, status);
1da177e4 LT	274	return;
1da177e4 LT	275	}
6fcdcf04	276
2e124b4a	277	if (urb->actual_length) {
8e34c6c2 JH	278	usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
8e34c6c2 JH	279	data);
05c7cd39	280	tty_insert_flip_string(&port->port, data, urb->actual_length);
2e124b4a	281	tty_flip_buffer_push(&port->port);
1da177e4	282	}
1da177e4	283
6fcdcf04	284	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
b12f7a1c	285	dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
1da177e4 LT	286	}
	287
	288
feb0a36a	289	static void kobil_write_int_callback(struct urb *urb)
1da177e4 LT	290	{
	291	}
	292
	293
dee0a7cc	294	static int kobil_write(struct tty_struct tty, struct usb_serial_port port,
1da177e4 LT	295	const unsigned char *buf, int count)
	296	{
	297	int length = 0;
	298	int result = 0;
	299	int todo = 0;
dee0a7cc	300	struct kobil_private *priv;
1da177e4 LT	301
1da177e4 LT	302	if (count == 0) {
b12f7a1c	303	dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
1da177e4 LT	304	return 0;
	305	}
	306
	307	priv = usb_get_serial_port_data(port);
	308
	309	if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
b12f7a1c	310	dev_dbg(&port->dev, "%s - Error: write request bigger than buffer size\n", __func__);
1da177e4 LT	311	return -ENOMEM;
	312	}
	313
dee0a7cc AC	314	/* Copy data to buffer */
dee0a7cc AC	315	memcpy(priv->buf + priv->filled, buf, count);
59d33f2f	316	usb_serial_debug_data(&port->dev, __func__, count, priv->buf + priv->filled);
1da177e4 LT	317	priv->filled = priv->filled + count;
1da177e4 LT	318
dee0a7cc AC	319	/* only send complete block. TWIN, KAAN SIM and adapter K
	320	use the same protocol. */
	321	if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) \|\|
	322	((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
	323	/* stop reading (except TWIN and KAAN SIM) */
	324	if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
	325	\|\| (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
1da177e4 LT	326	usb_kill_urb(port->interrupt_in_urb);
	327
	328	todo = priv->filled - priv->cur_pos;
	329
dee0a7cc AC	330	while (todo > 0) {
dee0a7cc AC	331	/* max 8 byte in one urb (endpoint size) */
feb0a36a	332	length = min(todo, port->interrupt_out_size);
dee0a7cc	333	/* copy data to transfer buffer */
feb0a36a	334	memcpy(port->interrupt_out_buffer,
dee0a7cc	335	priv->buf + priv->cur_pos, length);
feb0a36a	336	port->interrupt_out_urb->transfer_buffer_length = length;
1da177e4 LT	337
1da177e4 LT	338	priv->cur_pos = priv->cur_pos + length;
feb0a36a	339	result = usb_submit_urb(port->interrupt_out_urb, GFP_NOIO);
b12f7a1c	340	dev_dbg(&port->dev, "%s - Send write URB returns: %i\n", __func__, result);
1da177e4 LT	341	todo = priv->filled - priv->cur_pos;
1da177e4 LT	342
dee0a7cc	343	if (todo > 0)
1da177e4	344	msleep(24);
dee0a7cc	345	}
1da177e4	346
1da177e4 LT	347	priv->filled = 0;
	348	priv->cur_pos = 0;
	349
dee0a7cc AC	350	/* start reading (except TWIN and KAAN SIM) */
	351	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\|
	352	priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
dee0a7cc AC	353	result = usb_submit_urb(port->interrupt_in_urb,
dee0a7cc AC	354	GFP_NOIO);
b12f7a1c	355	dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
1da177e4 LT	356	}
	357	}
	358	return count;
	359	}
	360
	361
dee0a7cc	362	static int kobil_write_room(struct tty_struct *tty)
1da177e4	363	{
95da310e	364	/* FIXME */
1da177e4 LT	365	return 8;
	366	}
	367
	368
60b33c13	369	static int kobil_tiocmget(struct tty_struct *tty)
1da177e4	370	{
95da310e	371	struct usb_serial_port *port = tty->driver_data;
dee0a7cc	372	struct kobil_private *priv;
1da177e4 LT	373	int result;
	374	unsigned char *transfer_buffer;
	375	int transfer_buffer_length = 8;
	376
	377	priv = usb_get_serial_port_data(port);
dee0a7cc AC	378	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
	379	\|\| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
	380	/* This device doesn't support ioctl calls */
1da177e4 LT	381	return -EINVAL;
	382	}
	383
dee0a7cc	384	/* allocate memory for transfer buffer */
80b6ca48	385	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
dee0a7cc	386	if (!transfer_buffer)
1da177e4	387	return -ENOMEM;
1da177e4	388
dee0a7cc AC	389	result = usb_control_msg(port->serial->dev,
	390	usb_rcvctrlpipe(port->serial->dev, 0),
	391	SUSBCRequest_GetStatusLineState,
	392	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_IN,
	393	0,
	394	0,
	395	transfer_buffer,
	396	transfer_buffer_length,
	397	KOBIL_TIMEOUT);
	398
b12f7a1c GKH	399	dev_dbg(&port->dev, "%s - Send get_status_line_state URB returns: %i. Statusline: %02x\n",
b12f7a1c GKH	400	__func__, result, transfer_buffer[0]);
1da177e4	401
a40d8540 AC	402	result = 0;
	403	if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
	404	result = TIOCM_DSR;
1da177e4	405	kfree(transfer_buffer);
a40d8540	406	return result;
1da177e4 LT	407	}
1da177e4 LT	408
20b9d177	409	static int kobil_tiocmset(struct tty_struct *tty,
1da177e4 LT	410	unsigned int set, unsigned int clear)
1da177e4 LT	411	{
95da310e	412	struct usb_serial_port *port = tty->driver_data;
b12f7a1c	413	struct device *dev = &port->dev;
dee0a7cc	414	struct kobil_private *priv;
1da177e4 LT	415	int result;
	416	int dtr = 0;
	417	int rts = 0;
	418	unsigned char *transfer_buffer;
	419	int transfer_buffer_length = 8;
	420
a40d8540	421	/* FIXME: locking ? */
1da177e4	422	priv = usb_get_serial_port_data(port);
dee0a7cc AC	423	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
	424	\|\| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
	425	/* This device doesn't support ioctl calls */
1da177e4 LT	426	return -EINVAL;
	427	}
	428
dee0a7cc	429	/* allocate memory for transfer buffer */
80b6ca48	430	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
dee0a7cc	431	if (!transfer_buffer)
1da177e4	432	return -ENOMEM;
1da177e4 LT	433
	434	if (set & TIOCM_RTS)
	435	rts = 1;
	436	if (set & TIOCM_DTR)
	437	dtr = 1;
	438	if (clear & TIOCM_RTS)
	439	rts = 0;
	440	if (clear & TIOCM_DTR)
	441	dtr = 0;
	442
	443	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
	444	if (dtr != 0)
b12f7a1c	445	dev_dbg(dev, "%s - Setting DTR\n", __func__);
1da177e4	446	else
b12f7a1c	447	dev_dbg(dev, "%s - Clearing DTR\n", __func__);
dee0a7cc AC	448	result = usb_control_msg(port->serial->dev,
	449	usb_rcvctrlpipe(port->serial->dev, 0),
	450	SUSBCRequest_SetStatusLinesOrQueues,
	451	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
	452	((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
	453	0,
	454	transfer_buffer,
	455	0,
	456	KOBIL_TIMEOUT);
1da177e4 LT	457	} else {
1da177e4 LT	458	if (rts != 0)
b12f7a1c	459	dev_dbg(dev, "%s - Setting RTS\n", __func__);
1da177e4	460	else
b12f7a1c	461	dev_dbg(dev, "%s - Clearing RTS\n", __func__);
dee0a7cc AC	462	result = usb_control_msg(port->serial->dev,
	463	usb_rcvctrlpipe(port->serial->dev, 0),
	464	SUSBCRequest_SetStatusLinesOrQueues,
	465	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
	466	((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
	467	0,
	468	transfer_buffer,
	469	0,
	470	KOBIL_TIMEOUT);
1da177e4	471	}
b12f7a1c	472	dev_dbg(dev, "%s - Send set_status_line URB returns: %i\n", __func__, result);
1da177e4 LT	473	kfree(transfer_buffer);
	474	return (result < 0) ? result : 0;
	475	}
	476
95da310e AC	477	static void kobil_set_termios(struct tty_struct *tty,
95da310e AC	478	struct usb_serial_port port, struct ktermios old)
1da177e4	479	{
dee0a7cc	480	struct kobil_private *priv;
1da177e4 LT	481	int result;
1da177e4 LT	482	unsigned short urb_val = 0;
adc8d746	483	int c_cflag = tty->termios.c_cflag;
94d0f7ea	484	speed_t speed;
1da177e4 LT	485
1da177e4 LT	486	priv = usb_get_serial_port_data(port);
dee0a7cc	487	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\|
b31f658b	488	priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
dee0a7cc	489	/* This device doesn't support ioctl calls */
6a6c8b36	490	tty_termios_copy_hw(&tty->termios, old);
94d0f7ea	491	return;
b31f658b	492	}
1da177e4	493
dee0a7cc AC	494	speed = tty_get_baud_rate(tty);
	495	switch (speed) {
	496	case 1200:
	497	urb_val = SUSBCR_SBR_1200;
	498	break;
	499	default:
	500	speed = 9600;
	501	case 9600:
	502	urb_val = SUSBCR_SBR_9600;
	503	break;
94d0f7ea	504	}
dee0a7cc AC	505	urb_val \|= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
dee0a7cc AC	506	SUSBCR_SPASB_1StopBit;
94d0f7ea	507	if (c_cflag & PARENB) {
96679f6b	508	if (c_cflag & PARODD)
94d0f7ea	509	urb_val \|= SUSBCR_SPASB_OddParity;
96679f6b	510	else
94d0f7ea	511	urb_val \|= SUSBCR_SPASB_EvenParity;
96679f6b	512	} else
94d0f7ea	513	urb_val \|= SUSBCR_SPASB_NoParity;
adc8d746	514	tty->termios.c_cflag &= ~CMSPAR;
95da310e	515	tty_encode_baud_rate(tty, speed, speed);
1da177e4	516
dee0a7cc AC	517	result = usb_control_msg(port->serial->dev,
	518	usb_rcvctrlpipe(port->serial->dev, 0),
	519	SUSBCRequest_SetBaudRateParityAndStopBits,
	520	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
	521	urb_val,
	522	0,
96679f6b	523	NULL,
dee0a7cc AC	524	0,
dee0a7cc AC	525	KOBIL_TIMEOUT
94d0f7ea	526	);
94d0f7ea	527	}
1da177e4	528
00a0d0d6	529	static int kobil_ioctl(struct tty_struct *tty,
dee0a7cc	530	unsigned int cmd, unsigned long arg)
94d0f7ea	531	{
95da310e	532	struct usb_serial_port *port = tty->driver_data;
dee0a7cc	533	struct kobil_private *priv = usb_get_serial_port_data(port);
94d0f7ea AC	534	unsigned char *transfer_buffer;
	535	int transfer_buffer_length = 8;
	536	int result;
	537
dee0a7cc AC	538	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\|
	539	priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
	540	/* This device doesn't support ioctl calls */
b31f658b	541	return -ENOIOCTLCMD;
1da177e4	542
94d0f7ea	543	switch (cmd) {
95da310e	544	case TCFLSH:
5cbded58	545	transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
dee0a7cc AC	546	if (!transfer_buffer)
	547	return -ENOBUFS;
	548
	549	result = usb_control_msg(port->serial->dev,
	550	usb_rcvctrlpipe(port->serial->dev, 0),
	551	SUSBCRequest_Misc,
	552	USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
	553	SUSBCR_MSC_ResetAllQueues,
	554	0,
	555	NULL, /* transfer_buffer, */
	556	0,
	557	KOBIL_TIMEOUT
1da177e4	558	);
dee0a7cc	559
b12f7a1c GKH	560	dev_dbg(&port->dev,
b12f7a1c GKH	561	"%s - Send reset_all_queues (FLUSH) URB returns: %i", __func__, result);
1da177e4	562	kfree(transfer_buffer);
95da310e	563	return (result < 0) ? -EIO: 0;
94d0f7ea AC	564	default:
94d0f7ea AC	565	return -ENOIOCTLCMD;
1da177e4	566	}
1da177e4 LT	567	}
1da177e4 LT	568
68e24113	569	module_usb_serial_driver(serial_drivers, id_table);
1da177e4	570
dee0a7cc AC	571	MODULE_AUTHOR(DRIVER_AUTHOR);
	572	MODULE_DESCRIPTION(DRIVER_DESC);
	573	MODULE_LICENSE("GPL");